<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<!--
			引用外面的js代码
		-->
		<script type="text/javascript" src="js/demo.js" ></script>
	</head>
	<body>
	</body>
	<script type="text/javascript">
		
	</script>
</html>
